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Understanding 12

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x Multiply
9 x 12 =
÷ Divide
36 ÷ 12 =
+ Addition
7 + 12 =
- Subtraction
105 - 12 =

Twelve, 12, XII

Multiply x * . () by twelve:
12 groups of or 12 lots of
Learn your 12 times tables
Times by 10 then add 2 more

Divide ÷ / by twelve:
How many times does 12 go into
Break into 12 groups
Reverse 12x tables 3x12=36 so 36÷12=3 and 36÷3=12

Add + twelve:
Add 1 to the tens and 2 to the ones digit
Add 10 then add 2

Take - twelve:
Take 1 from the tens digit then 2 from the ones digit
Take 2 then take 10

Number in grey (left) x number in grey (top) = number in white OR number in white ÷ number in grey = other number in grey.

x0123456789101112
110112233445566778899110121132

Number in grey (left) + number in grey (top) = number in white OR number in white - number in grey = other number in grey.

+0123456789101112
1111121314151617181920212223

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